Ventilator.



M. G. HUBBARD.

VENTILATOR. APPLICATION FILED NOV. 25, 1907.

Patented Aug. 3, 1909.

UNTED STATES PATENT OFFICE.

MOSES G. HUBBARD, OF GHATHAM, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MONARGH VENTIIATOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

VENTILATOR.

useful Improvements in Ventilators, of which the following is a specification.

My invention relates to improvements in window ventilators, which provide for the.

natural ventilation of a room upon the well known law of the equalization and circulation of gases; and the object of my invention is to simplify and improve the construction and. operation of this type of ventilator with a view to preventing the entrance of objectionable drafts and directing the incoming currents of fresh air upwardly and away from the occupants of the room.

With these objects in view my invention comprises a window ventilator having a flue adapted to be mounted horizontally in a window or other wall opening and expanded into an enlarged chamber leading to a vertical extension, the outlet of which is of smaller area than the said enlarged chamber. The enlargement of the flue is preferably provided with a curved wall for directing the incoming currents of air upwardly and outwardly toward the inner face of the window, and to 3 prevent the entrance of gusts of air, one or more baffle plates are arranged in the enlarged chamber to direct the incoming air against the said curved wall. A damper is arranged in the outlet opening of the ventilater to control the amount of air entering the room, and this damper is preferably formed with springy or yielding contact edges which engage the walls of the ventilating flue and tightly close the opening when the damper is in closed position. To facilitate the mounting of the ventilator in a Window opening beneath the window sash, I provide a filling block or bar, preferably of wood, which extends the entire width of the Window opening and rests upon the sill, and I form in this filling block or barv a transverse opening of the pro er size to receive the horizontal portion of tie ventilator. Any suitable means may be provided for fitting the filling block or bar tightly in the window opening.

In addition to the above recited main features of my invention, Ihave devised other minor features of more or less importance,

and in order that my invention maybe fully Specification of Letters Patent.

Application filed November 25, 1907.

Patented Aug. 3, 1909.

Serial No, 403,631.

understood, I will first describe the same with reference to the accompanying drawing, and afterward point out the novelty more particularly in the annexed claims.

In said drawing: Figure 1 is a vertical exterior elevation of my improved ventilator mounted in the filling block or bar beneath the window sash. Fig. 2 is a plan view of the same. Fig. 3 is avertieal transverse sectional view of the same. Fig. 4 is a detail perspective view showing the yielding lips or flanges of the damper.

1 represents the frame of a window or other opening in the wall of a building leading to a room to be ventilated.

2 is the inner window sill and 3 is the outer sill.

5 is a block or bar of wood extending trans versely of the window opening and completely filling the same, said bar 5 resting under the lower window sash i. This block or bar may be formed with an adjustable end section 6 cut off at an angle as indicated at 7 from the main bar and connected to the main bar by a link 8 which is pivoted at its opposite ends 9 and 10 to the main bar 5 and section 6. This link 8 rests in saw kerfs or reccsses 11 and 12 in the members 5 and 6, so as to permit the adjustable member 6 to be moved upwardly upon the main bar 5. To prevent the entrance of drafts between. the members 5 and 6011 their line of separation 7, I preferably provide an inner facing strip 13 which is divided at 14 on a line parallel with the plane of separation 7, but removed from said plane so as to break oint therewith. A similar inner facing strip 15 may be provided at the opposite end of the barf). It will be observed that the bar 5 with adjustable end bloek 6 being cut-to approximately the proper length to completely fill the win dow opening, the bar is put in place with the block 6 raised out of line with the bar when the block is moved over into alinement with the bar and forced into place to tightly fit a the bar in the window opening.

The filler block or bar 5 is formed with a transverse opening or recess in its upper edge as indicated at 20 in Figs. 1 and 3 to receive the approximately horizontal rectangular flue portion of the ventilator.

The ventilator proper is made of sheet metal and comprises a broad shallow inlet flue 25 which is adapted to rest in the opening 20 of the filler block 5 directly beneath ing lips 01' flanges 5 edge of the damper plate 50, -w11i1e54 curved springy flange *shown in Figeof thedravvings, in i extended onthe are of a circle drewn,

the pivot rod 51. This for'm t smce it eflordse yielding 5 5, 7 v Ventilating flue in -e11 pos tlons' 50 has ihei ng oi" o itheoutletof the d.

jointstherewi th to e ided L 45 when the damper is I L 53 th n is the long yielding flange, or at the e, Y

vanto Oates the end flanges or'lips ofthe the e plate! This inner yielding flerigeror lip the V the damper plate is "preferably will:

the outer wall of the, upward of When the damper is "in 7 vas tn jentiietoi {comprising j an additional battle plate:

hO pas Viiulov, l, V

the entrance of ob into the room. The onlyeir ean possl or er andhavingmi inward; *bly enter through the ventiiator must pass upwerd the upper-Well of the inlet upbetween the dampe1-50' and the window.

said flue,- and it damper The outer flange ol lipj55 of damper-{plate 50 is bent upwardly and downwardly to yieidf-z *being extended to form a wlthin said upwerd eXf 1139 tension and formed with an elastic flange extending from one edge and having wiping contact with the inner wall of the flue, substantially as set forth.

2. A window ventilator comprising a flue ada ted to pass through a window or other wal opening and having an inner upward extenslon, an adjustable damper plate mounted wholly within said flue, and yielding lips or flanges on all edges of said damper plate engaging the walls of the flue.

3. A window ventilator comprising a flue adapted to pass through a window or other wall opening and expanding at its inner end into an enlarged chamber having an upwardly presented outlet opening, and a pivotally mounted damper arranged in the flue adjacent to the outlet opening, said damper having its edges bent with relation to the damper plate to yieldingly engage the walls of the flue.

4-. The combinationwith a flue, of a valve or other wall opening and having an inner upward extension opening into the room, a damper movably mounted in the opening of said flue extension and having one edge bent upwardly and. downwardly to engage the uper edge of one wall of said extension to limit the closing movement of the damper, the other edges of said damper yieldingly engaging the other walls of the flue extension. MOSES G. HUBBARD.

\Vitnesses:

WM. E. KNIGHT, JosEPi-I J. SCHMIDT. 

